./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_553577ba-5c04-4077-995c-ea8e3a654a1f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_553577ba-5c04-4077-995c-ea8e3a654a1f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_553577ba-5c04-4077-995c-ea8e3a654a1f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_553577ba-5c04-4077-995c-ea8e3a654a1f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_553577ba-5c04-4077-995c-ea8e3a654a1f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_553577ba-5c04-4077-995c-ea8e3a654a1f/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d4eb13f545cea9ac583f40da9d0bc0269dc50786 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 22:17:55,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:17:55,531 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:17:55,605 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:17:55,605 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:17:55,607 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:17:55,609 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:17:55,611 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:17:55,613 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:17:55,614 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:17:55,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:17:55,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:17:55,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:17:55,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:17:55,620 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:17:55,622 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:17:55,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:17:55,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:17:55,626 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:17:55,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:17:55,631 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:17:55,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:17:55,637 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:17:55,638 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:17:55,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:17:55,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:17:55,642 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:17:55,644 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:17:55,644 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:17:55,645 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:17:55,646 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:17:55,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:17:55,648 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:17:55,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:17:55,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:17:55,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:17:55,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:17:55,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:17:55,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:17:55,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:17:55,656 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:17:55,657 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_553577ba-5c04-4077-995c-ea8e3a654a1f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 22:17:55,684 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:17:55,684 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:17:55,685 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:17:55,686 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:17:55,686 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:17:55,686 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:17:55,686 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:17:55,687 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:17:55,687 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:17:55,687 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:17:55,687 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 22:17:55,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:17:55,688 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 22:17:55,688 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:17:55,688 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:17:55,689 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:17:55,689 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 22:17:55,689 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:17:55,689 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:17:55,690 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:17:55,690 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 22:17:55,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:17:55,690 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:17:55,691 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:17:55,691 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 22:17:55,691 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:17:55,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 22:17:55,692 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 22:17:55,692 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:17:55,692 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_553577ba-5c04-4077-995c-ea8e3a654a1f/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_553577ba-5c04-4077-995c-ea8e3a654a1f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4eb13f545cea9ac583f40da9d0bc0269dc50786 [2020-11-29 22:17:55,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:17:55,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:17:55,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:17:55,979 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:17:55,980 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:17:55,982 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_553577ba-5c04-4077-995c-ea8e3a654a1f/bin/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c [2020-11-29 22:17:56,058 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_553577ba-5c04-4077-995c-ea8e3a654a1f/bin/uautomizer/data/55fa88b69/da686946371b46a4b13e6f24aa2d41d1/FLAG4ab3aa878 [2020-11-29 22:17:56,572 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:17:56,573 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_553577ba-5c04-4077-995c-ea8e3a654a1f/sv-benchmarks/c/product-lines/minepump_spec1_product44.cil.c [2020-11-29 22:17:56,599 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_553577ba-5c04-4077-995c-ea8e3a654a1f/bin/uautomizer/data/55fa88b69/da686946371b46a4b13e6f24aa2d41d1/FLAG4ab3aa878 [2020-11-29 22:17:56,886 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_553577ba-5c04-4077-995c-ea8e3a654a1f/bin/uautomizer/data/55fa88b69/da686946371b46a4b13e6f24aa2d41d1 [2020-11-29 22:17:56,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:17:56,889 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:17:56,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:17:56,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:17:56,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:17:56,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:17:56" (1/1) ... [2020-11-29 22:17:56,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a233d1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:17:56, skipping insertion in model container [2020-11-29 22:17:56,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:17:56" (1/1) ... [2020-11-29 22:17:56,905 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:17:56,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:17:57,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:17:57,291 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:17:57,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:17:57,400 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:17:57,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:17:57 WrapperNode [2020-11-29 22:17:57,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:17:57,404 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:17:57,404 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:17:57,405 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:17:57,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:17:57" (1/1) ... [2020-11-29 22:17:57,445 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:17:57" (1/1) ... [2020-11-29 22:17:57,503 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:17:57,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:17:57,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:17:57,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:17:57,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:17:57" (1/1) ... [2020-11-29 22:17:57,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:17:57" (1/1) ... [2020-11-29 22:17:57,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:17:57" (1/1) ... [2020-11-29 22:17:57,540 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:17:57" (1/1) ... [2020-11-29 22:17:57,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:17:57" (1/1) ... [2020-11-29 22:17:57,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:17:57" (1/1) ... [2020-11-29 22:17:57,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:17:57" (1/1) ... [2020-11-29 22:17:57,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:17:57,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:17:57,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:17:57,575 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:17:57,590 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:17:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_553577ba-5c04-4077-995c-ea8e3a654a1f/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 22:17:57,657 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:17:57,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:17:57,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:17:57,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:17:58,550 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:17:58,551 INFO L298 CfgBuilder]: Removed 126 assume(true) statements. [2020-11-29 22:17:58,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:17:58 BoogieIcfgContainer [2020-11-29 22:17:58,553 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:17:58,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 22:17:58,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 22:17:58,560 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 22:17:58,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 10:17:56" (1/3) ... [2020-11-29 22:17:58,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6827c5c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:17:58, skipping insertion in model container [2020-11-29 22:17:58,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:17:57" (2/3) ... [2020-11-29 22:17:58,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6827c5c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 10:17:58, skipping insertion in model container [2020-11-29 22:17:58,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:17:58" (3/3) ... [2020-11-29 22:17:58,563 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product44.cil.c [2020-11-29 22:17:58,574 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 22:17:58,579 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-29 22:17:58,589 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-29 22:17:58,613 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 22:17:58,613 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 22:17:58,613 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 22:17:58,613 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:17:58,613 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:17:58,613 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 22:17:58,614 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:17:58,614 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 22:17:58,632 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states. [2020-11-29 22:17:58,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 22:17:58,638 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:17:58,638 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:17:58,639 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:17:58,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:17:58,644 INFO L82 PathProgramCache]: Analyzing trace with hash -807964332, now seen corresponding path program 1 times [2020-11-29 22:17:58,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:17:58,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379623962] [2020-11-29 22:17:58,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:17:58,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:17:58,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:17:58,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379623962] [2020-11-29 22:17:58,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:17:58,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:17:58,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235653832] [2020-11-29 22:17:58,933 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 22:17:58,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:17:58,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 22:17:58,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 22:17:58,949 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 2 states. [2020-11-29 22:17:58,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:17:58,978 INFO L93 Difference]: Finished difference Result 175 states and 260 transitions. [2020-11-29 22:17:58,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 22:17:58,980 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-11-29 22:17:58,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:17:58,990 INFO L225 Difference]: With dead ends: 175 [2020-11-29 22:17:58,993 INFO L226 Difference]: Without dead ends: 85 [2020-11-29 22:17:59,002 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 22:17:59,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-11-29 22:17:59,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-11-29 22:17:59,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-11-29 22:17:59,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 120 transitions. [2020-11-29 22:17:59,042 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 120 transitions. Word has length 16 [2020-11-29 22:17:59,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:17:59,042 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 120 transitions. [2020-11-29 22:17:59,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 22:17:59,043 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 120 transitions. [2020-11-29 22:17:59,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 22:17:59,044 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:17:59,044 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:17:59,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 22:17:59,045 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:17:59,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:17:59,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1854721229, now seen corresponding path program 1 times [2020-11-29 22:17:59,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:17:59,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033056425] [2020-11-29 22:17:59,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:17:59,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:17:59,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:17:59,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033056425] [2020-11-29 22:17:59,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:17:59,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:17:59,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016753813] [2020-11-29 22:17:59,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:17:59,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:17:59,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:17:59,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:17:59,218 INFO L87 Difference]: Start difference. First operand 85 states and 120 transitions. Second operand 3 states. [2020-11-29 22:17:59,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:17:59,237 INFO L93 Difference]: Finished difference Result 85 states and 120 transitions. [2020-11-29 22:17:59,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:17:59,238 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-11-29 22:17:59,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:17:59,240 INFO L225 Difference]: With dead ends: 85 [2020-11-29 22:17:59,240 INFO L226 Difference]: Without dead ends: 39 [2020-11-29 22:17:59,242 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:17:59,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-29 22:17:59,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-11-29 22:17:59,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-29 22:17:59,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 55 transitions. [2020-11-29 22:17:59,252 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 55 transitions. Word has length 17 [2020-11-29 22:17:59,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:17:59,253 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 55 transitions. [2020-11-29 22:17:59,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:17:59,253 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2020-11-29 22:17:59,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-29 22:17:59,254 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:17:59,254 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:17:59,254 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 22:17:59,254 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:17:59,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:17:59,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1297648259, now seen corresponding path program 1 times [2020-11-29 22:17:59,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:17:59,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972036739] [2020-11-29 22:17:59,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:17:59,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:17:59,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:17:59,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972036739] [2020-11-29 22:17:59,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:17:59,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:17:59,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471224722] [2020-11-29 22:17:59,332 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:17:59,332 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:17:59,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:17:59,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:17:59,333 INFO L87 Difference]: Start difference. First operand 39 states and 55 transitions. Second operand 3 states. [2020-11-29 22:17:59,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:17:59,394 INFO L93 Difference]: Finished difference Result 105 states and 153 transitions. [2020-11-29 22:17:59,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:17:59,398 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-11-29 22:17:59,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:17:59,400 INFO L225 Difference]: With dead ends: 105 [2020-11-29 22:17:59,400 INFO L226 Difference]: Without dead ends: 72 [2020-11-29 22:17:59,401 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:17:59,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-11-29 22:17:59,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 68. [2020-11-29 22:17:59,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-29 22:17:59,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 99 transitions. [2020-11-29 22:17:59,422 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 99 transitions. Word has length 22 [2020-11-29 22:17:59,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:17:59,423 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 99 transitions. [2020-11-29 22:17:59,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:17:59,423 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions. [2020-11-29 22:17:59,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-29 22:17:59,424 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:17:59,424 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:17:59,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 22:17:59,428 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:17:59,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:17:59,429 INFO L82 PathProgramCache]: Analyzing trace with hash -372126526, now seen corresponding path program 1 times [2020-11-29 22:17:59,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:17:59,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621507969] [2020-11-29 22:17:59,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:17:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:17:59,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:17:59,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621507969] [2020-11-29 22:17:59,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:17:59,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:17:59,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030341793] [2020-11-29 22:17:59,566 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:17:59,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:17:59,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:17:59,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:17:59,567 INFO L87 Difference]: Start difference. First operand 68 states and 99 transitions. Second operand 3 states. [2020-11-29 22:17:59,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:17:59,621 INFO L93 Difference]: Finished difference Result 171 states and 254 transitions. [2020-11-29 22:17:59,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:17:59,622 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-11-29 22:17:59,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:17:59,624 INFO L225 Difference]: With dead ends: 171 [2020-11-29 22:17:59,624 INFO L226 Difference]: Without dead ends: 109 [2020-11-29 22:17:59,625 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:17:59,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-11-29 22:17:59,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 107. [2020-11-29 22:17:59,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-11-29 22:17:59,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 155 transitions. [2020-11-29 22:17:59,649 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 155 transitions. Word has length 23 [2020-11-29 22:17:59,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:17:59,649 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 155 transitions. [2020-11-29 22:17:59,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:17:59,649 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 155 transitions. [2020-11-29 22:17:59,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 22:17:59,650 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:17:59,651 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:17:59,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 22:17:59,651 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:17:59,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:17:59,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1852423790, now seen corresponding path program 1 times [2020-11-29 22:17:59,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:17:59,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433425731] [2020-11-29 22:17:59,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:17:59,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:17:59,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:17:59,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433425731] [2020-11-29 22:17:59,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:17:59,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:17:59,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671313977] [2020-11-29 22:17:59,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:17:59,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:17:59,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:17:59,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:17:59,736 INFO L87 Difference]: Start difference. First operand 107 states and 155 transitions. Second operand 5 states. [2020-11-29 22:17:59,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:17:59,879 INFO L93 Difference]: Finished difference Result 535 states and 792 transitions. [2020-11-29 22:17:59,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-29 22:17:59,880 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-11-29 22:17:59,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:17:59,884 INFO L225 Difference]: With dead ends: 535 [2020-11-29 22:17:59,884 INFO L226 Difference]: Without dead ends: 434 [2020-11-29 22:17:59,885 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-29 22:17:59,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-11-29 22:17:59,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 198. [2020-11-29 22:17:59,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-11-29 22:17:59,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 283 transitions. [2020-11-29 22:17:59,930 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 283 transitions. Word has length 25 [2020-11-29 22:17:59,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:17:59,931 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 283 transitions. [2020-11-29 22:17:59,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:17:59,932 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 283 transitions. [2020-11-29 22:17:59,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-29 22:17:59,937 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:17:59,938 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:17:59,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 22:17:59,938 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:17:59,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:17:59,939 INFO L82 PathProgramCache]: Analyzing trace with hash -2056230884, now seen corresponding path program 1 times [2020-11-29 22:17:59,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:17:59,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973955347] [2020-11-29 22:17:59,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:17:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:00,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:18:00,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973955347] [2020-11-29 22:18:00,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:18:00,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:18:00,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344142583] [2020-11-29 22:18:00,029 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:18:00,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:18:00,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:18:00,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:18:00,030 INFO L87 Difference]: Start difference. First operand 198 states and 283 transitions. Second operand 5 states. [2020-11-29 22:18:00,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:18:00,182 INFO L93 Difference]: Finished difference Result 572 states and 822 transitions. [2020-11-29 22:18:00,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 22:18:00,183 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-11-29 22:18:00,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:18:00,186 INFO L225 Difference]: With dead ends: 572 [2020-11-29 22:18:00,187 INFO L226 Difference]: Without dead ends: 570 [2020-11-29 22:18:00,187 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-29 22:18:00,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2020-11-29 22:18:00,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 198. [2020-11-29 22:18:00,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-11-29 22:18:00,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 281 transitions. [2020-11-29 22:18:00,216 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 281 transitions. Word has length 26 [2020-11-29 22:18:00,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:18:00,220 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 281 transitions. [2020-11-29 22:18:00,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:18:00,220 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 281 transitions. [2020-11-29 22:18:00,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-29 22:18:00,224 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:18:00,224 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:18:00,224 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 22:18:00,225 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:18:00,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:18:00,229 INFO L82 PathProgramCache]: Analyzing trace with hash 437867349, now seen corresponding path program 1 times [2020-11-29 22:18:00,229 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:18:00,229 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540570558] [2020-11-29 22:18:00,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:18:00,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:00,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:18:00,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540570558] [2020-11-29 22:18:00,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:18:00,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-29 22:18:00,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547955280] [2020-11-29 22:18:00,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-29 22:18:00,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:18:00,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-29 22:18:00,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:18:00,295 INFO L87 Difference]: Start difference. First operand 198 states and 281 transitions. Second operand 5 states. [2020-11-29 22:18:00,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:18:00,361 INFO L93 Difference]: Finished difference Result 550 states and 772 transitions. [2020-11-29 22:18:00,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 22:18:00,362 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2020-11-29 22:18:00,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:18:00,365 INFO L225 Difference]: With dead ends: 550 [2020-11-29 22:18:00,366 INFO L226 Difference]: Without dead ends: 358 [2020-11-29 22:18:00,370 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-29 22:18:00,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-11-29 22:18:00,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 210. [2020-11-29 22:18:00,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-11-29 22:18:00,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 293 transitions. [2020-11-29 22:18:00,393 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 293 transitions. Word has length 33 [2020-11-29 22:18:00,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:18:00,395 INFO L481 AbstractCegarLoop]: Abstraction has 210 states and 293 transitions. [2020-11-29 22:18:00,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-29 22:18:00,395 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 293 transitions. [2020-11-29 22:18:00,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-29 22:18:00,397 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:18:00,398 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:18:00,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-29 22:18:00,398 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:18:00,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:18:00,398 INFO L82 PathProgramCache]: Analyzing trace with hash -148938665, now seen corresponding path program 1 times [2020-11-29 22:18:00,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:18:00,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991786628] [2020-11-29 22:18:00,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:18:00,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:00,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:18:00,449 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991786628] [2020-11-29 22:18:00,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:18:00,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 22:18:00,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11558949] [2020-11-29 22:18:00,450 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 22:18:00,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:18:00,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 22:18:00,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 22:18:00,451 INFO L87 Difference]: Start difference. First operand 210 states and 293 transitions. Second operand 4 states. [2020-11-29 22:18:00,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:18:00,510 INFO L93 Difference]: Finished difference Result 510 states and 706 transitions. [2020-11-29 22:18:00,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 22:18:00,511 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-11-29 22:18:00,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:18:00,513 INFO L225 Difference]: With dead ends: 510 [2020-11-29 22:18:00,513 INFO L226 Difference]: Without dead ends: 306 [2020-11-29 22:18:00,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 22:18:00,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2020-11-29 22:18:00,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 218. [2020-11-29 22:18:00,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-11-29 22:18:00,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 301 transitions. [2020-11-29 22:18:00,534 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 301 transitions. Word has length 33 [2020-11-29 22:18:00,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:18:00,534 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 301 transitions. [2020-11-29 22:18:00,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 22:18:00,535 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 301 transitions. [2020-11-29 22:18:00,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-11-29 22:18:00,535 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:18:00,535 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:18:00,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-29 22:18:00,536 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:18:00,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:18:00,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1428802343, now seen corresponding path program 1 times [2020-11-29 22:18:00,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:18:00,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519719612] [2020-11-29 22:18:00,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:18:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:00,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:18:00,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519719612] [2020-11-29 22:18:00,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:18:00,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 22:18:00,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438247962] [2020-11-29 22:18:00,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 22:18:00,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:18:00,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:18:00,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:18:00,591 INFO L87 Difference]: Start difference. First operand 218 states and 301 transitions. Second operand 3 states. [2020-11-29 22:18:00,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:18:00,635 INFO L93 Difference]: Finished difference Result 530 states and 726 transitions. [2020-11-29 22:18:00,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:18:00,636 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-11-29 22:18:00,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:18:00,638 INFO L225 Difference]: With dead ends: 530 [2020-11-29 22:18:00,638 INFO L226 Difference]: Without dead ends: 318 [2020-11-29 22:18:00,639 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:18:00,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-11-29 22:18:00,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2020-11-29 22:18:00,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-11-29 22:18:00,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 423 transitions. [2020-11-29 22:18:00,669 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 423 transitions. Word has length 33 [2020-11-29 22:18:00,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:18:00,670 INFO L481 AbstractCegarLoop]: Abstraction has 318 states and 423 transitions. [2020-11-29 22:18:00,670 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 22:18:00,670 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 423 transitions. [2020-11-29 22:18:00,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-29 22:18:00,672 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:18:00,673 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:18:00,673 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-29 22:18:00,673 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:18:00,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:18:00,674 INFO L82 PathProgramCache]: Analyzing trace with hash -271506405, now seen corresponding path program 1 times [2020-11-29 22:18:00,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:18:00,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997264032] [2020-11-29 22:18:00,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:18:00,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:18:00,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:18:00,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997264032] [2020-11-29 22:18:00,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:18:00,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-29 22:18:00,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097008899] [2020-11-29 22:18:00,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 22:18:00,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:18:00,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 22:18:00,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-29 22:18:00,772 INFO L87 Difference]: Start difference. First operand 318 states and 423 transitions. Second operand 6 states. [2020-11-29 22:18:01,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:18:01,078 INFO L93 Difference]: Finished difference Result 992 states and 1318 transitions. [2020-11-29 22:18:01,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-29 22:18:01,079 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-11-29 22:18:01,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 22:18:01,083 INFO L225 Difference]: With dead ends: 992 [2020-11-29 22:18:01,083 INFO L226 Difference]: Without dead ends: 680 [2020-11-29 22:18:01,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-11-29 22:18:01,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2020-11-29 22:18:01,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 318. [2020-11-29 22:18:01,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-11-29 22:18:01,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 415 transitions. [2020-11-29 22:18:01,123 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 415 transitions. Word has length 34 [2020-11-29 22:18:01,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 22:18:01,125 INFO L481 AbstractCegarLoop]: Abstraction has 318 states and 415 transitions. [2020-11-29 22:18:01,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 22:18:01,125 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 415 transitions. [2020-11-29 22:18:01,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-11-29 22:18:01,127 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 22:18:01,127 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 22:18:01,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-29 22:18:01,128 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 22:18:01,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:18:01,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1089805871, now seen corresponding path program 1 times [2020-11-29 22:18:01,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:18:01,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347468721] [2020-11-29 22:18:01,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:18:01,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:18:01,208 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:18:01,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:18:01,273 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:18:01,348 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:18:01,348 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 22:18:01,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-29 22:18:01,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 10:18:01 BoogieIcfgContainer [2020-11-29 22:18:01,530 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 22:18:01,531 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:18:01,531 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:18:01,531 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:18:01,531 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:17:58" (3/4) ... [2020-11-29 22:18:01,533 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 22:18:01,701 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_553577ba-5c04-4077-995c-ea8e3a654a1f/bin/uautomizer/witness.graphml [2020-11-29 22:18:01,701 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:18:01,703 INFO L168 Benchmark]: Toolchain (without parser) took 4813.03 ms. Allocated memory was 81.8 MB in the beginning and 144.7 MB in the end (delta: 62.9 MB). Free memory was 53.3 MB in the beginning and 85.7 MB in the end (delta: -32.4 MB). Peak memory consumption was 28.7 MB. Max. memory is 16.1 GB. [2020-11-29 22:18:01,704 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 81.8 MB. Free memory was 38.7 MB in the beginning and 38.6 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:18:01,705 INFO L168 Benchmark]: CACSL2BoogieTranslator took 511.14 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 53.3 MB in the beginning and 65.8 MB in the end (delta: -12.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:18:01,705 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.42 ms. Allocated memory is still 98.6 MB. Free memory was 65.8 MB in the beginning and 62.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:18:01,706 INFO L168 Benchmark]: Boogie Preprocessor took 65.59 ms. Allocated memory is still 98.6 MB. Free memory was 62.7 MB in the beginning and 60.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:18:01,706 INFO L168 Benchmark]: RCFGBuilder took 978.09 ms. Allocated memory is still 98.6 MB. Free memory was 60.4 MB in the beginning and 66.2 MB in the end (delta: -5.8 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. [2020-11-29 22:18:01,706 INFO L168 Benchmark]: TraceAbstraction took 2974.07 ms. Allocated memory was 98.6 MB in the beginning and 144.7 MB in the end (delta: 46.1 MB). Free memory was 65.6 MB in the beginning and 105.6 MB in the end (delta: -40.0 MB). Peak memory consumption was 59.3 MB. Max. memory is 16.1 GB. [2020-11-29 22:18:01,707 INFO L168 Benchmark]: Witness Printer took 171.02 ms. Allocated memory is still 144.7 MB. Free memory was 105.6 MB in the beginning and 85.7 MB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-29 22:18:01,709 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 81.8 MB. Free memory was 38.7 MB in the beginning and 38.6 MB in the end (delta: 39.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 511.14 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 53.3 MB in the beginning and 65.8 MB in the end (delta: -12.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 103.42 ms. Allocated memory is still 98.6 MB. Free memory was 65.8 MB in the beginning and 62.7 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 65.59 ms. Allocated memory is still 98.6 MB. Free memory was 62.7 MB in the beginning and 60.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 978.09 ms. Allocated memory is still 98.6 MB. Free memory was 60.4 MB in the beginning and 66.2 MB in the end (delta: -5.8 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2974.07 ms. Allocated memory was 98.6 MB in the beginning and 144.7 MB in the end (delta: 46.1 MB). Free memory was 65.6 MB in the beginning and 105.6 MB in the end (delta: -40.0 MB). Peak memory consumption was 59.3 MB. Max. memory is 16.1 GB. * Witness Printer took 171.02 ms. Allocated memory is still 144.7 MB. Free memory was 105.6 MB in the beginning and 85.7 MB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L220] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L500] int pumpRunning = 0; [L501] int systemActive = 1; [L695] int waterLevel = 1; [L696] int methaneLevelCritical = 0; [L853] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L926] int retValue_acc ; [L927] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L844] int retValue_acc ; [L847] retValue_acc = 1 [L848] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L933] tmp = valid_product() [L935] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L424] int splverifierCounter ; [L425] int tmp ; [L426] int tmp___0 ; [L427] int tmp___1 ; [L428] int tmp___2 ; [L431] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L433] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L435] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L441] tmp = __VERIFIER_nondet_int() [L443] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L713] COND TRUE waterLevel < 2 [L714] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L451] tmp___0 = __VERIFIER_nondet_int() [L453] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L461] tmp___2 = __VERIFIER_nondet_int() [L463] COND TRUE \read(tmp___2) [L689] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L508] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L515] COND TRUE \read(systemActive) [L537] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L540] COND TRUE ! pumpRunning [L652] int retValue_acc ; [L653] int tmp ; [L654] int tmp___0 ; [L775] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L778] COND FALSE !(waterLevel < 2) [L782] retValue_acc = 0 [L783] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L658] tmp = isHighWaterSensorDry() [L660] COND FALSE !(\read(tmp)) [L663] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L665] retValue_acc = tmp___0 [L666] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L542] tmp = isHighWaterLevel() [L544] COND TRUE \read(tmp) [L571] int tmp ; [L596] int retValue_acc ; [L734] int retValue_acc ; [L737] retValue_acc = methaneLevelCritical [L738] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L600] retValue_acc = isMethaneLevelCritical() [L602] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L575] tmp = isMethaneAlarm() [L577] COND FALSE !(\read(tmp)) [L565] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L790] int tmp ; [L791] int tmp___0 ; [L734] int retValue_acc ; [L737] retValue_acc = methaneLevelCritical [L738] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L795] tmp = isMethaneLevelCritical() [L797] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L433] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L435] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L441] tmp = __VERIFIER_nondet_int() [L443] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L451] tmp___0 = __VERIFIER_nondet_int() [L453] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L725] COND FALSE !(\read(methaneLevelCritical)) [L728] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L461] tmp___2 = __VERIFIER_nondet_int() [L463] COND TRUE \read(tmp___2) [L689] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L508] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L701] COND TRUE waterLevel > 0 [L702] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L515] COND TRUE \read(systemActive) [L537] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L540] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L790] int tmp ; [L791] int tmp___0 ; [L734] int retValue_acc ; [L737] retValue_acc = methaneLevelCritical [L738] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L795] tmp = isMethaneLevelCritical() [L797] COND TRUE \read(tmp) [L607] int retValue_acc ; [L610] retValue_acc = pumpRunning [L611] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L799] tmp___0 = isPumpRunning() [L801] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L3] __assert_fail("0", "minepump_spec1_product44.cil.c", 3, "reach_error") VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 92 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.7s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 823 SDtfs, 1037 SDslu, 1352 SDs, 0 SdLazy, 173 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=318occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 1212 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 311 NumberOfCodeBlocks, 311 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 252 ConstructedInterpolants, 0 QuantifiedInterpolants, 12224 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...